CREAKING & CRACKING ON THE FRAME AND WHEELS
The frame misleads us by making noises in the wrong place, but is sometimes the cause itself - because clamping parts on the frame rock, screw connections are loose or cracks have actually formed. Wheels, especially the rear wheel, are also sound generators.
A bike can be tuned like an instrument. Thick, thin-walled tubes are resonating bodies, like the body of a guitar. Components are stimulated to vibrate like strings, for example when braking. "You therefore have to make sure that the resonance frequency at which components are easily excited to vibrate is in a range that does not occur when driving," advises Norbert Köhn from Reset Engineering. "This can mean, for example, changing the spoke tension in wheels or inserting spokes of a different diameter if the wheel has been identified as the culprit and all other sources of error have already been ruled out."
You can find more articles on the subject of eliminating noise on MTBs here:
You can find this article in BIKE 12/2018. You can read the entire digital edition in the BIKE app (iTunes and Google Play) or the print edition in the DK shop reorder - while stocks last:
